Subject: 3.5m Night Log 20211018
From: mcmillan@apo.nmsu.edu
Date: Tue, 19 Oct 2021 12:33:00 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, October 18, 2021
PROG  PI ASTRONOMER      OBSERVER(S)
--------------------------------------------------------------------
EN01  B.Ketzeback       R.McMillan
                         ON-SKY
PROG  INSTRUMENT     START   FINISH
--------------------------------------------------------------------
EN01  ARCTIC         18:35   19:55
EN01  Agile          20:00   20:25
EN01  ARCTIC         20:30   21:55
EN01  SHACK          22:00   22:25
EN01  ARCTIC         22:30   23:55
EN01  KOSMOS         00:15   06:05
   PROG       SCHEDULED      WEATH     EQUIP     OBS     NOT USED
 I/ROW/DTN  START  FINISH   D    B    D    B    D    B    D    B
-----------------------------------------------------------------
EN01/W      18:35  07:02    0    0    0    0   0.8 11.5   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: R.McMillan
A lovely clear night, with sometimes excellent and sometimes meh seeing.  Aside from restarts and a quick collimation check, I did a lot of ARCTIC throughput data first half and a lot of KOSMOS focus repeatability tests second half.
                    ------- FAILURE LOG -------
              FAILURE MODE     TIME
PROG   INSTR     TI/SHU    START  FINISH  DESCRIPTION
----------------------------------------------------------------------
            ---------------- FOCUS LOG ---------------
Time  Instrument  Focus     Az  El  Temp Strc Prim  Sec  Air  filt  FWHM
--------------------------------------------------------------------------
 19:29 arctic   529( 1292) -38  51  10.6 10.7 10.8 10.6 10.6   sdss_i  1.02
 22:11 shack   450( 1718) 115  60   9.9  9.9 10.6 10.0 10.0   -  1.70
 00:47 kimage   525(  937) -101  43   8.7  8.5  9.2  8.5  8.6   -  1.18
 02:56 kosmos   475(  799) 150  65   7.4  6.9  7.6  6.7  6.9   -  0.71
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    58    32     22   252  (WSW)   1013    clear     none
     17:00    55    30     18   224   (SW)    915    clear     none
     18:00    54    30     17   226   (SW)   1092    clear     none
     19:00    51    29     20   240  (WSW)   1448    clear     none
     20:00    51    29     18   219   (SW)   1594    clear     none
     21:00    51    27     21   223   (SW)   1455    clear     none
     22:00    51    27     16   238  (WSW)   1319    clear     none
     23:00    49    25     18   253  (WSW)   1020    clear     none
     00:00    49    28     20   254  (WSW)   1017    clear     none
     01:00    48    28     20   232   (SW)    989    clear     none
     02:00    46    30     16   222   (SW)   1084    clear     none
     03:00    45    31     17   238  (WSW)   1152    clear     none
     04:00    44    31     16   243  (WSW)   1249    clear     none
     05:00    42    32     12   246  (WSW)   1410    clear     none
     06:00    41    32     12   268    (W)   1504    clear     none
     Note: the wind was coming from the azimuth listed.
     The convention used is north=0 degrees, east=90 degrees.
     The dust count is particles > 1u per 0.1 cubic feet.
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